does it matter how wide the slot port is. I am looking at a box 35x15x16. With a slot port of 2.5 inches wide its about 33.75 tuned to 35 hz. A opening 3" wide is tuned to 37.6 with 40.5 sq inches of port. Whats the general rule on the width of a port without getting port noise. Also if i wanted to use a 4" pvc is says it will be 4.9 inches long for 35 hz. I would think that would not be enough for a single driver and be very high tuned. Thanks

dappa5

08-19-2009, 06:45 PM

slot port rule of thumb = 12-16 in^2 per ft^3

mmouse57

08-19-2009, 07:30 PM

make sure to include port and subwoofer placement in your box

so if 35x15x16 is what your subs need you will need to make it bigger :)

dappa5

08-19-2009, 08:02 PM

make sure to include port and subwoofer placement in your box

so if 35x15x16 is what your subs need you will need to make it bigger :)
http://www.easyfreesmileys.com/smileys/free-sign-smileys-1010.gif (http://www.easyfreesmileys.com/Free-Party-Smileys/)
lmao did you mean displacement??
lol gotcha b-4 edit lol

07BronzeFuz

08-24-2009, 02:07 PM

yea, displacement. With my box 35x15x16 and a slot port opening 3" 13.5" long It gives me the proper hz i am looing for. Do I have to make a 90 degree turn, or can the port just be straight going toward the back of the box. If I turn the port 90 degree the hz go way down. I was trying to get 35-37ish